My mum's a manic depressive

My mum's a manic depressive and I live with her and my sister because I

can't afford my own place.

While I love the house and can cope with her

illness lately

it seems she is doing more and more just to get attention, like talking

louldly about cramps and other embarassing things in crowded public places.

My sister

feels the same as I do what can we do?

Tina, Epsom